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以土壤与不同比例堆肥混合培养试验为基础，研究了堆肥对土壤主要营养元素可溶性的影响。对试验结果的统计分析表明，在０．０１ＭＣａＣｌ２浸提液中的可溶有机全碳（ＴＯＣ）在堆肥比例１０％时急剧上升；ＮＯ３－和Ｋ随堆肥比例的增加而明显增加。ＴＯＣ在混合物培养７５ｄ前明显下降后又上升；ＮＯ３－随培养时间的变化无规律；Ｋ随培养时间而下降；Ｐ不受堆肥比例及培养时间的影响。
Based on the mixed cultivation experiment of soil and different proportion of compost, the effect of compost on the solubility of main nutrient elements in soil was studied. Statistical analysis of the test results showed that soluble organic carbon (TOC) in the 0.01MCaCl2 extract increased sharply at the compost ratio of 10%; NO3- and K increased significantly with the compost ratio. TOC decreased obviously and then increased in the mixture 75 days later. The variation of NO3- with time was irregular. The K decreased with the incubation time. P was not affected by the proportion of compost and culture time.